BIOA02H3 Lecture Notes - Sanguinaria, Meristem, Primordium
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BIOA02H3 Full Course Notes
Verified Note
43 documents
Document Summary
From tree to seed: transport in plants, plant nutrition and soils, plant defense, plant life on the edge. Lecture 7 notes (from tree to seed);aka sex in plants: plant sex organs. Female: stigma + style+ ovary = carpel. Protects inner flower organs before bud opens. Stigma: sticky landing platform for pollen (e. g. kiwi, poppy, tulip) Style: connects stigma with ovary (azalea, primrose, lily,) Ovules contain egg cell: syncarpous ovary: many ovules (e. g cucumbers) Turns from leaf primordium into flower primordium. A,b,c genes specify the four different flower organ types. Each of these genes is active in two adjacent rings of cells. C=carpel organ: plant sex is not as boring as animal sex some plants can have missing sepals or petals. Meadow rue: no petal, no female organ. 6% of angiosperms are unisexual=dioecious flowers. (one male plant, and one female plant only just as how there is only one male, and one female)
